No guarantee it makes any difference, but if there is an alternative that might work better, they have to at least try it and I'm just glad to hear they are willing to try.
Stan should hire Rick Barry to show him how to do it the right way.
Granny-style solution?:
Pistons center Andre Drummond has not tried underhand free throws as a possible solution to his woes from the line, and while it's wildly speculative to think he could fare any better with a completely foreign form when he can't make 40 percent with a traditional style he has used all his life, Van Gundy said he "wouldn't, in the long run, eliminate any possibility; the idea is to get the ball in the basket." The Pistons' coach said he doesn't think machismo would enter into it if Drummond could find success shooting underhanded, but added, "There's no guarantee it would get better. I think if any player knew it would get better, they would do it. I don't think it's a stigma thing, I just think it's kind of a last-resort thing. We're not there yet but you don't rule out anything when you're trying to get better."
http://www.mlive.com/pistons/index.ssf/2016/01/detroit_pistons_notes_calls_fo.html